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等温层
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  isothermal layer
     The propagation experiment of explosive sounds in the isothermal layer below the thermoeline was made, the record of individual modes for frequencies 0.32-1.0 kHz was obtained.
     在跃变层之下的等温层中进行了爆炸声传播实验,获得了频率0.32—1.0kH2的单个简正波的记录。
短句来源
     Experimental result shows that under condition of isothermal layer channel,long distance and low target speed,target pulse-pulse echo correlation coefficient is about 0.7,for a stable time of about 10 s.
     实验结果表明:在等温层信道中,目标距离较远、目标相对速度较低的情况下,海上目标回波脉间相关系数在70%左右,至少在10s 内时间中,可以保持较强的相干性;
短句来源
  “等温层”译为未确定词的双语例句
     The whole layers were stable energy areas, and the thickness of temperature inversion layer approached the thickest at 00 UTC 5 January 2003.The vertical-cross sections of vertical velocity and relative humidity across Lingxian station from 00 UTC 4 to 00 UTC 5 were also examined. It is indicated that in the upper-level the downdraft was dominated.
     500 hPa以下均存在等温层或逆温层,整层均为稳定能量区,5日00UTC的等温层或逆温层所达厚度最厚。
短句来源
  相似匹配句对
     Free-convection Boundary Layer on an Isothermal Elliptic Cylinder
     等温椭圆柱上的自由对流边界
短句来源
     Measuring Carbonized Layer Depth by Isothermal Salt Bath Method
     盐浴等温法测定渗碳深度
短句来源
     (2) isothermal;
     一般等温;
短句来源
     Multi-Layer Switch
     多交换技术
短句来源
     (3) syllablic tier;
     (3)音节;
短句来源
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  isothermal layer
Radiative heat transfer formulas are derived for an isothermal layer of gas and gray walls; they are compared with previously published formulas.
      
Radiative heat transfer between surfaces of a plane isothermal layer
      
Seasonal variability of near-surface isothermal layer and thermocline characteristics of the Tropical Indian Ocean
      
The variability of the near-surface isothermal layer temperature (ILT), on the annual mode, is very weak in the warmpool region, and increases with latitude, while on the semi-annual mode, it shows larger variability in the northwestern Arabian Sea.
      
The relationship between near-surface isothermal layer and thermocline characteristics over an annual cycle are explored through correlation analysis.
      
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The propagation experiment of explosive sounds in the isothermal layer below the thermoeline was made, the record of individual modes for frequencies 0.32-1.0 kHz was obtained. By analyzing the travel time of mode pulse, it was determined that the oscillographic recording was the first mode. On the basis of analyzing the propagation properties of the first mode, the bottom-reflection coefficients at small grazing angle for frequencies 0.32-1.0 kHz were obtained.

在跃变层之下的等温层中进行了爆炸声传播实验,获得了频率0.32—1.0kH2的单个简正波的记录。通过对简正波脉冲传播时间的分析,确定所记录的波形为第一号简正波。根据第一号简正波的传播特性,分析得到了频率0.32—1.0千赫的小掠射角海底反射系数。

In the paper, the atatistics analyses of the inversion layer and the bounday layer jet over middle and lower reaches of the Changjang Valley have been made. The results show that the strong wind speed area at times exists in the, boundary layer over the middle and lower reaches of the Changjiang Valley and that most of the jet streams are northeastward and southwestward. The southwest jet stream often locates at the top of the inversion layer A northward strong wind speed belt often appears at the lower part...

In the paper, the atatistics analyses of the inversion layer and the bounday layer jet over middle and lower reaches of the Changjang Valley have been made. The results show that the strong wind speed area at times exists in the, boundary layer over the middle and lower reaches of the Changjiang Valley and that most of the jet streams are northeastward and southwestward. The southwest jet stream often locates at the top of the inversion layer A northward strong wind speed belt often appears at the lower part of the cold front inversion and moves with cyclone and cold front while a cold front is passing through. The strong wind speed belt is related to the occurrence of heavy rain and severe convection.

本文对长江中下游地区边界层风场和逆温层分布进行了统计分析.发现在长江中下游地区边界层内有时存在着强风速带,其主要表现为东北和西南急流;边界层急流只有在西南气流时才常位于逆温层或等温层顶部;冷锋过境后常可看到一支位于锋面逆温下部的偏北强风速带并常伴随气旋或冷锋移动;它们与暴雨和强对流发生有一定联系

A cold front which passed over the dense observation network in East China on 27~28 April, 1983 was investigated. The cold front was accompanied by a severe weather. In this paper, the analysis focuses on the vertical circulation across the frontal surface in the lower-middle troposphere and the structure of the frontal zone. It has been found that the major features of the cold frontal system are: (a) The subsidence existed ahead of the upper level through which confined moisture below 850 hPa; (b) Maxima of...

A cold front which passed over the dense observation network in East China on 27~28 April, 1983 was investigated. The cold front was accompanied by a severe weather. In this paper, the analysis focuses on the vertical circulation across the frontal surface in the lower-middle troposphere and the structure of the frontal zone. It has been found that the major features of the cold frontal system are: (a) The subsidence existed ahead of the upper level through which confined moisture below 850 hPa; (b) Maxima of the horizontal gradient of temperature fields were in the middle troposphere; (c) Direct thermal circulation which associated with moist warm air ascending located just above the frontal surface; (d) Strong subsidence of cold air behind the front formed the temperature inversion or isothermal layer. The case in East Asia has been compared with that in SESAME and results show that the strong frontal zone of the former case concentrated mainly in middle troposphere, it seems to imply that the dynamics forcing of the upper level jet related with the adjustment process contributed significantly the intensification of frontal system.

本文利用常规探空资料和华东中尺度试验的部分资料,对1983年春季一次快速南下,并在江准地区产生大范围强对流天气的冷锋进行了三维结构的分析。通过研究发现,这次冷锋过程主要有以下特征:(1)与冷锋相对应的高空槽前存在一支下沉(DVM)气流;(2)有一强的辐合区出现在对流层中层,锋前上升运动的最大值也出现在对流层中层;(3)比较强的锋生过程主要集中于对流层中下层;(4)存在一支明显的热力直接环流(TDC),即暖湿中气沿冷锋倾斜上升;(5)在冷锋后存在一支较强的下沉气流(DVM),这支DVM对冷锋逆温层(或等温层)的形成可能有重要作用。并将此次东亚春季强冷锋个例与小仓义光(Ogura)等分析的北美春季冷锋(SESAME)个例作「对比,发现此次冷锋个例中,锋区的温度密集区上要在对流层中层,而北美SESAME个例温度密集区主要在对流层低层。这可能是由于东亚高空急流较强,动力强迫而引发锋生所致。

 
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